This guide is a comprehensive and authoritative resource for tracing the ownership history of works of art. Focused on cultural property looted by the Nazis and others during WWII, it is divided into three parts: Basic Provenance Research and Principles, Holocaust-Era Provenance Research, and Appendices which include bibliographies of collections, dealer archives, and "red flag names" compiled by the Office of Strategic Services. Includes an index and reproductions of artworks and relevant documents.